Παραπομπή APA

Labovitz,Sanford. (1976). Introduction to social research (2.). Mc Graw Hill Book Company.

Παραπομπή Chicago Style

Labovitz,Sanford. Introduction to Social Research. 2. New York: Mc Graw Hill Book Company, 1976.

Παραπομπή MLA

Labovitz,Sanford. Introduction to Social Research. 2. Mc Graw Hill Book Company, 1976.